Arctic Ocean

The Arctic Ocean is the smallest and shallowest of the world's five oceanic divisions, spanning approximately 14 million square kilometers and covering the North Pole region. It is the coldest of the world's oceans and is mostly covered by sea ice throughout the year, with a significant decline in sea ice extent over the past few decades. The Arctic Ocean has a low salinity due to heavy freshwater inflow from rivers and streams, and its history dates back at least 17,000 to 50,000 years, with human habitation in the North American polar region during the Wisconsin glaciation, followed by the settlement of the Americas.learn more on wikipedia